发明授权
- 专利标题: High performance knee prostheses with converging anterior and posterior portions
- 专利标题(中): 具有会聚的前部和后部的高性能膝关节假体
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申请号: US12582300申请日: 2009-10-20
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公开(公告)号: US08398715B2公开(公告)日: 2013-03-19
- 发明人: Jason K. Otto , Brian McKinnon , Michael Dean Hughes , Michael Ries , Jan Victor , Johan Bellemans , Johnathan Garino , Timothy Wilton
- 申请人: Jason K. Otto , Brian McKinnon , Michael Dean Hughes , Michael Ries , Jan Victor , Johan Bellemans , Johnathan Garino , Timothy Wilton
- 申请人地址: US TN Memphis US PA Philadelphia
- 专利权人: Smith & Nephew, Inc.,The Trustees of The University of Pennsylvania
- 当前专利权人: Smith & Nephew, Inc.,The Trustees of The University of Pennsylvania
- 当前专利权人地址: US TN Memphis US PA Philadelphia
- 代理机构: Kilpatrick Townsend & Stockton LLP
- 主分类号: A61F2/38
- IPC分类号: A61F2/38
摘要:
Knee prostheses featuring components that more faithfully replicate the structure and function of the human knee joint in order to provide, among other benefits: greater flexion of the knee in a more natural way by promoting or at least accommodating internal tibial rotation in a controlled way, replication of the natural screw home mechanism, and controlled articulation of the tibia and femur respective to each other in a more natural way. In a preferred embodiment, such prostheses include an insert component disposed between a femoral component and a tibial component, the insert component preferably featuring among other things a reversely contoured posterolateral bearing surface that helps impart internal rotation to the tibia as the knee flexes. Other surfaces can also be specially shaped to achieve similar results, preferably using iterative automated techniques that allow testing and iterative design taking into account a manageable set of major forces acting on the knee during normal functioning, together with information that is known about natural knee joint kinetics and kinematics.
公开/授权文献
- US20100042224A1 HIGH PERFORMANCE KNEE PROSTHESES 公开/授权日:2010-02-18